| Variable | Parameter Estimate, ºC | 95% CI | p |
| Birth weight (per 100 g increase). | 0.173 | 0.146 to 0.201 | <0.001 |
| Antenatal steroids | 0.184 | 0.068 to 0.300 | 0.002 |
| Caesarean section | 0.236 | 0.150 to 0.322 | <0.001 |
| Multiplicity | – 0.157 | – 0.253 to – 0.062 | 0.001 |
| 5 min Apgar score ≤3 | – 0.058 | – 0.088 to – 0.028 | <0.001 |